Addiction is defined as a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences. â  It is considered a brain disease because drugs change the brainâthey change its structure and how it works.ource: From the laboratories of Drs. N. Volkow and H. Schelbert. Addiction is a lot like other diseases, such as heart disease. Both disrupt the normal, healthy functioning of the underlying organ, have serious harmful consequences, and are preventable and treatable, but if left untreated, can last a lifetime.
there is a dog from Africa called a Basenji, it doesn't bark, it sorta yodels. and also the visila from south America is said not to bark Please don't listen to all of the smart arses. Deaf dogs bark very little. But all dogs bark.
The Basenji produces an unusual yodel-like sound, due to its unusually shaped larynx. [1] This trait also gives the basenji the nickname Voiceless Dog. Although Basenjis do not bark per se, they can mimic sounds, and thus are able to mimic barks if raised among barking dogs.[2] In behavior and temperament they have some traits in common with cats.